The National Museum of Computing (TNMOC) is home to the world's largest collection of working historic computers.
Follow the development of computing: from the Turing-Welchman Bombe and Colossus of the 1940s through the large systems and mainframes of the 1950s, 60s and 70s, to the rise of personal computing and the rise of mobile computing and the internet.
Recognised as one of England’s top 100 ‘irreplaceable places’, we welcome corporate and group visits, schools and individuals from all over the world.
We have not yet returned to our 6 day opening schedule, we aim to open to the public Tuesday, Thursday, Saturday and Sunday - 10:30am - 16:30pm last entry 3.30 during Winter hours - but please check our Days Open page before planning your visit.
In the future we plan to extend to Tuesday to Sunday 10:30am - 5pm (spring/summer), 10:30am - 4:30pm (Autumn/Winter)
TNMOC operates independently of Bletchley Park Trust, although we are located on the Bletchley Park Estate.
To visit us, go through the main Bletchley Park entrance, through the barrier, walk or drive bearing left beyond the main car parks, to our separate entrance located at the top of the Park.
We do recommend you BOOK ONLINE in advance of your visit but we also welcome visitors on the day. Please see the information below.
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Help us Renovate the Roof of The National Museum of Computing
~~ Crowdfunder Appeal ~~
Preserve and Protect the Origins of Digital Computing
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Be part of the Bletchley Park Legacy
~~ Click Here ~~ Help us Renovate the Roof of The National Museum of Computing ~~ Crowdfunder Appeal ~~ Preserve and Protect the Origins of Digital Computing ~~ Click Here ~~ Be part of the Bletchley Park Legacy
Why not plan a visit to our world leading computing museum? We offer individual, family and annual tickets and we are easy to reach by public transport or car.
Whether you are a business organisation or a private group of friends, we tailor your group visit to fit your requirements, including time, and you will benefit from the knowledge of one of our highly experienced, trained tour guides.
UPCOMING EVENTS
We have a number of very interesting events and Virtual Talks over the next few months, as well as our very popular Guided Tours in the Museum.
During the Second World War, the German Armed Forces sent 1000s of Enigma encrypted messages every day. To crack this seemingly unbreakable cipher, the Allies turned to an electromechanical machine to do the job - the Bombe.
The Turing-Welchman Bombe was a marvel of engineering and ingenuity. The first bombe operated in August 1940 and more than 200 existed by the end of the war. By uncovering the daily ‘key’, as many as 5,000 messages to be deciphered each day.
This remarkable guide explains how the Bombe works in easy-to-understand language and walks you through the entire codebreaking process. With helpful diagrams and photographs throughout, The Bombe is the essential guide to the machine that changed the course of the war.
A signed copy by Sir Dermot Turing is available for a small additional fee.
Buyers from Europe and USA can now purchase the book online by selecting the appropriate item with postage to your area. For all other countries, please Email Operations@tnmoc.org for postage costs.